Network Configuration Not Learned
2006-2010 Ford Explorer 4.6L V8
Description
The vehicle network configuration has not been learned or stored after module replacement or reset.
Symptoms
- Systems not communicating properly
- Features missing after service
- Modules not recognizing each other
- Network topology error
Common Causes
- Battery disconnect without relearn
- Module replacement without network setup
- Configuration data lost
- Programming interrupted
Diagnostic Steps
- Perform network configuration learn procedure
- Run module discovery scan
- Program as-built data
- Perform SBL (System Bus Learn)
- Complete post-service initialization
Repair Notes
Run network configuration or module discovery procedure. Required after replacing network modules.
Related Codes
Other Network Codes
- U0001High Speed CAN Communication Bus
- U0001High Speed CAN Communication Bus
- U0001High Speed CAN Communication Bus
- U0002High Speed CAN Communication Bus Performance
- U0002High Speed CAN Communication Bus Performance
- U0002High Speed CAN Communication Bus Performance
- U0003High Speed CAN Communication Bus (+) Open
- U0003High Speed CAN Communication Bus (+) Open
- U0003High Speed CAN Communication Bus (+) Open
- U0004High Speed CAN Communication Bus (+) Low
U2004 on Other Vehicles
Ford Bronco
2021-2024 2.3L I4 EcoBoost
Ford Bronco
2021-2024 2.7L V6 EcoBoost
Ford Bronco Raptor
2022-2024 3.0L V6 EcoBoost
Ford Bronco Sport
2021-2024 1.5L I3 EcoBoost
Ford Bronco Sport
2021-2024 2.0L I4 EcoBoost
Ford Crown Victoria
1998-2011 4.6L V8 Modular 2V
Ford E-150
1997-2014 4.6L V8 Triton
Ford E-150
1997-2014 5.4L V8 Triton
Common Questions
What does code U2004 mean on a 2006-2010 Ford Explorer?
U2004 stands for "Network Configuration Not Learned". The vehicle network configuration has not been learned or stored after module replacement or reset.
What are the symptoms of U2004 on a Ford Explorer?
Common symptoms of U2004 include: Systems not communicating properly, Features missing after service, Modules not recognizing each other, Network topology error.
What causes U2004 on a 2006-2010 Ford Explorer?
Common causes of U2004 include: Battery disconnect without relearn, Module replacement without network setup, Configuration data lost, Programming interrupted.